青州博物馆悬挑13m钢结构挑檐安装技术

QINGZHOU MUSEUM CANTILEVER 13M STEEL STRUCTURE EAVES INSTALLATION TECHNOLOGY

为解决青州博物馆悬挑13 m钢结构挑檐安装施工难题,通过方案对比选定了整体吊装与高空散装相结合的安装方法。采用盘扣式架体作为安装支撑胎架,并对胎架进行了设计和计算。利用手拉倒链解决了三角形钢桁架吊装空中姿态难题,使用BIM技术对盘扣式支撑胎架搭设和吊装过程进行了仿真模拟。应用结果表明:盘扣式支撑胎架相较传统型钢胎架,搭设速度快,施工成本更经济。BIM技术对于钢结构施工中工程量统计、成本动态管理、方案优化、三维可视化交底等方面具有较大优势。

In order to solve the construction problem of overhanging 13 m steel structure cornice installation of Qingzhou Museum,the installation method of the combination of integral hoisting and high-altitude bulk is selected through scheme comparison.The turnbuckle frame is used as the mounting support jig frame,and the jig frame is designed and calculated.The air posture problem of triangular steel truss hoisting is solved by using hand-pulled chain fall,and the erection and hoisting process of turnbuckle support jig frame are simulated by using BIM Technology.The application results show that compared with the traditional section steel jig frame,the turnbuckle support jig frame has faster erection speed and more economical construction cost.BIM Technology has a good application prospect for engineering quantity statistics,cost dynamic management,scheme optimization and three-dimensional visual disclosure in steel structure construction.